{"id":1656,"date":"2026-08-06T09:08:06","date_gmt":"2026-08-06T09:08:06","guid":{"rendered":"https:\/\/bowo-electric.com\/?p=1656"},"modified":"2026-08-06T09:11:20","modified_gmt":"2026-08-06T09:11:20","slug":"waterproof-enclosure-cable-entry-design-guide","status":"publish","type":"post","link":"https:\/\/bowo-electric.com\/ar\/waterproof-enclosure-cable-entry-design-guide\/","title":{"rendered":"\u0643\u064a\u0641\u064a\u0629 \u062a\u0635\u0645\u064a\u0645 \u0641\u062a\u062d\u0627\u062a \u0645\u0631\u0648\u0631 \u0627\u0644\u0643\u0627\u0628\u0644\u0627\u062a \u0644\u0644\u0635\u0646\u0627\u062f\u064a\u0642 \u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a\u0629 \u0627\u0644\u0645\u0642\u0627\u0648\u0645\u0629 \u0644\u0644\u0645\u0627\u0621"},"content":{"rendered":"<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1586\" height=\"992\" src=\"https:\/\/bowo-electric.com\/wp-content\/uploads\/2026\/08\/waterproof-enclosure-cable-entry-cnc-machining.png\" alt=\"\u0641\u0646\u064a \u064a\u0642\u0648\u0645 \u0628\u0641\u062d\u0635 \u0641\u062a\u062d\u0627\u062a \u0645\u0645\u0631 \u0627\u0644\u0643\u0627\u0628\u0644\u0627\u062a \u0641\u064a \u0635\u0646\u062f\u0648\u0642 \u0643\u0647\u0631\u0628\u0627\u0626\u064a \u0645\u0642\u0627\u0648\u0645 \u0644\u0644\u0645\u0627\u0621 \u0645\u0635\u0645\u0645 \u062e\u0635\u064a\u0635\u064b\u0627\" class=\"wp-image-1658\" srcset=\"https:\/\/bowo-electric.com\/wp-content\/uploads\/2026\/08\/waterproof-enclosure-cable-entry-cnc-machining.png 1586w, https:\/\/bowo-electric.com\/wp-content\/uploads\/2026\/08\/waterproof-enclosure-cable-entry-cnc-machining-300x188.png 300w, https:\/\/bowo-electric.com\/wp-content\/uploads\/2026\/08\/waterproof-enclosure-cable-entry-cnc-machining-1024x640.png 1024w, https:\/\/bowo-electric.com\/wp-content\/uploads\/2026\/08\/waterproof-enclosure-cable-entry-cnc-machining-768x480.png 768w, https:\/\/bowo-electric.com\/wp-content\/uploads\/2026\/08\/waterproof-enclosure-cable-entry-cnc-machining-1536x961.png 1536w\" sizes=\"auto, (max-width: 1586px) 100vw, 1586px\" \/><\/figure>\n\n\n\n<div class=\"article-intro\">\n<p>Cable-entry design is an important part of a waterproof electrical enclosure.<br \/>Incorrect hole sizes, unsuitable cable glands or poor entry positions can reduce<br \/>sealing performance and make installation difficult.<\/p>\n<p>Before ordering a customized enclosure, buyers should confirm the cable diameter,<br \/>gland size, entry direction, internal components and required hole positions.<br \/>This guide explains the main points to check before CNC machining.<\/p>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Why Cable-Entry Design Matters<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\n  Every opening added to an enclosure may become a possible path for water or dust.<br>\n  The enclosure, cable glands, sealing plugs and installation method must work together<br>\n  as one complete system.\n<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Common problems include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Holes that are too large or too small<\/li>\n\n\n\n<li>Cable glands that do not match the cable diameter<\/li>\n\n\n\n<li>Entries positioned too close to the enclosure edge<\/li>\n\n\n\n<li>Insufficient space between adjacent cable glands<\/li>\n\n\n\n<li>Unused holes without sealing plugs<\/li>\n\n\n\n<li>Cables blocking internal components<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\n  Buyers can review BOWO Electric's<br>\n  <a href=\"https:\/\/bowo-electric.com\/ar\/%d9%85%d8%ac%d9%85%d9%88%d8%b9%d8%a9-%d8%a7%d9%84%d9%85%d9%86%d8%aa%d8%ac%d8%a7%d8%aa\/\"><br>\n    waterproof electrical enclosure range<br>\n  <\/a><br>\n  before selecting a suitable box for customization.\n<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Confirm the Cable Diameter First<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\n  Cable glands are selected according to the outside diameter of the complete cable,<br>\n  not only the conductor size.\n<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For each cable, provide:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0627\u0644\u0642\u0637\u0631 \u0627\u0644\u062e\u0627\u0631\u062c\u064a \u0644\u0644\u0643\u0627\u0628\u0644<\/li>\n\n\n\n<li>\u0639\u062f\u062f \u0627\u0644\u0643\u0627\u0628\u0644\u0627\u062a<\/li>\n\n\n\n<li>Cable function<\/li>\n\n\n\n<li>Required gland size<\/li>\n\n\n\n<li>Preferred entry direction<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\n  The cable diameter must remain within the gland's specified clamping range.<br>\n  A gland that is too large may not seal correctly, while a gland that is too small<br>\n  may damage the cable or make installation impossible.\n<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Choose the Correct Entry Position<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Bottom Entry<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\n  Bottom cable entries are commonly used for outdoor wall-mounted enclosures because<br>\n  they reduce direct exposure to falling rain.\n<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In BOWO Electric's<br> <a href=\"https:\/\/bowo-electric.com\/ar\/roadside-cctv-waterproof-junction-box-installation\/\"><br> roadside CCTV junction box project<\/a><br> power and communication cables entered through sealed bottom cable glands.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Side Entry<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\n  Side entries are suitable when cables run horizontally between machines or cabinets.<br>\n  Enough space should be left for tightening tools and cable bends.\n<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Top Entry<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\n  Top entries may be required when cables descend from an overhead tray. However,<br>\n  they need careful sealing because they may be directly exposed to rainwater.\n<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Leave Enough Space Between Cable Glands<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\n  Cable glands should not be installed too close together. Installers need space for<br>\n  locknuts, sealing washers, tools and cable bending.\n<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\n  The spacing should be based on the external gland size and internal locknut size,<br>\n  not only the hole diameter.\n<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Check the Internal Components<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\n  Before machining, confirm that each cable entry will not interfere with:\n<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>DIN rails<\/li>\n\n\n\n<li>\u0643\u062a\u0644 \u0627\u0644\u062a\u0648\u0635\u064a\u0644<\/li>\n\n\n\n<li>Circuit breakers<\/li>\n\n\n\n<li>Mounting plates<\/li>\n\n\n\n<li>Cover screws<\/li>\n\n\n\n<li>Hinges and latches<\/li>\n\n\n\n<li>The cover gasket<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">For organized cable connections, a<br> <a href=\"https:\/\/bowo-electric.com\/ar\/waterproof-terminal-block-junction-box\/\"><br> \u0635\u0646\u062f\u0648\u0642 \u062a\u0648\u0635\u064a\u0644 \u0644\u0648\u062d\u0627\u062a \u0627\u0644\u062a\u0648\u0635\u064a\u0644 \u0627\u0644\u0645\u0642\u0627\u0648\u0645 \u0644\u0644\u0645\u0627\u0621<\/a><br> can provide a clear internal wiring structure.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Allow Enough Cable Bending Space<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\n  Large power cables require more internal space than signal cables. The enclosure<br>\n  should provide enough room for cable bending, terminal connection and future<br>\n  maintenance.\n<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">When frequent inspection is required, an<br> <a href=\"https:\/\/bowo-electric.com\/ar\/industrial-ip66-hinged-waterproof-junction-box-with-metal-latches-for-outdoor-electrical-protection\/\"><br> \u0635\u0646\u062f\u0648\u0642 \u062a\u0648\u0635\u064a\u0644 \u0645\u0642\u0627\u0648\u0645 \u0644\u0644\u0645\u0627\u0621 \u0628\u0645\u0641\u0635\u0644\u0629 \u0645\u0646 \u0641\u0626\u0629 IP66<\/a><br> may provide easier access than a removable screw-fixed cover.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Seal All Unused Openings<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\n  Spare cable-entry holes must be closed with suitable sealing plugs. Temporary caps,<br>\n  tape or open holes should not be used as permanent outdoor sealing solutions.\n<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">BOWO Electric's<br> <a href=\"https:\/\/bowo-electric.com\/ar\/residential-barrier-gate-waterproof-junction-box\/\"><br> barrier gate junction box case<\/a><br> also shows the importance of proper cable entry and enclosure sealing.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">CNC Machining or Manual Drilling?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\n  Manual drilling may be acceptable for a small one-time installation, but CNC machining<br>\n  provides better consistency for repeated production and OEM projects.\n<\/p>\n\n\n\n<div class=\"table-responsive\">\n<table style=\"width: 100%; height: 294px;\">\n<thead>\n<tr style=\"height: 20px;\">\n<th style=\"height: 20px;\">Comparison<\/th>\n<th style=\"height: 20px;\">Manual Drilling<\/th>\n<th style=\"height: 20px;\">CNC Machining<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"height: 214px;\">\n<td style=\"height: 214px;\">\u0645\u0648\u0636\u0639 \u0627\u0644\u062b\u0642\u0628<\/td>\n<td style=\"height: 214px;\">May vary<\/td>\n<td style=\"height: 214px;\">Based on approved drawing<\/td>\n<\/tr>\n<tr style=\"height: 20px;\">\n<td style=\"height: 20px;\">Repeated orders<\/td>\n<td style=\"height: 20px;\">Lower consistency<\/td>\n<td style=\"height: 20px;\">More consistent production<\/td>\n<\/tr>\n<tr style=\"height: 20px;\">\n<td style=\"height: 20px;\">Complex cutouts<\/td>\n<td style=\"height: 20px;\">Difficult<\/td>\n<td style=\"height: 20px;\">Suitable for multiple openings<\/td>\n<\/tr>\n<tr style=\"height: 20px;\">\n<td style=\"height: 20px;\">Installation time<\/td>\n<td style=\"height: 20px;\">Requires site work<\/td>\n<td style=\"height: 20px;\">Ready for assembly<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\n  Learn more about CNC openings, printing, colors and custom structures in BOWO<br>\n  Electric's guide to<br>\n  <a href=\"https:\/\/bowo-electric.com\/ar\/how-to-customize-waterproof-junction-boxes-for-oem-projects\/\"><br>\n    waterproof junction box customization<br>\n  <\/a>.\n<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Prepare a Clear Machining Drawing<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\n  The drawing should clearly show:\n<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Enclosure model and dimensions<\/li>\n\n\n\n<li>\u0642\u0637\u0631 \u0627\u0644\u062b\u0642\u0628<\/li>\n\n\n\n<li>Hole quantity<\/li>\n\n\n\n<li>Distance from enclosure edges<\/li>\n\n\n\n<li>Entry surface<\/li>\n\n\n\n<li>Cable gland or connector model<\/li>\n\n\n\n<li>Drawing revision number<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\n  A drawing is more reliable than a photograph with approximate markings.<br>\n  The approved drawing should be used for sample production and mass production.\n<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Approve a Sample Before Mass Production<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\n  A sample is recommended when the enclosure includes customized holes, connectors,<br>\n  cable glands or internal components.\n<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The sample should be checked for:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Hole size and position<\/li>\n\n\n\n<li>Cable gland installation<\/li>\n\n\n\n<li>Internal locknut clearance<\/li>\n\n\n\n<li>Cable bending space<\/li>\n\n\n\n<li>Cover closing<\/li>\n\n\n\n<li>Gasket condition<\/li>\n\n\n\n<li>Internal component fit<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Does Machining Affect the IP Rating?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\n  The protection of the completed enclosure depends on the enclosure body, machining,<br>\n  cable glands, sealing plugs and final installation.\n<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Buyers should confirm which documentation applies to the selected model and<br> configuration through BOWO Electric's<br> <a href=\"https:\/\/bowo-electric.com\/ar\/qualification\/\"><br> qualification page<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Common Design Mistakes<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Providing conductor size instead of cable outside diameter<\/li>\n\n\n\n<li>Drilling holes before selecting the gland<\/li>\n\n\n\n<li>Placing holes too close to the edge<\/li>\n\n\n\n<li>Ignoring the internal locknut size<\/li>\n\n\n\n<li>Leaving insufficient cable bending space<\/li>\n\n\n\n<li>Leaving unused openings unsealed<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Which Enclosure Type Should You Choose?<\/h2>\n\n\n\n<div class=\"table-responsive\">\n<table style=\"width: 100%; height: 120px;\">\n<thead>\n<tr style=\"height: 20px;\">\n<th style=\"height: 20px;\">\u0627\u0644\u062a\u0637\u0628\u064a\u0642<\/th>\n<th style=\"height: 20px;\">Recommended Enclosure Type<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"height: 20px;\">\n<td style=\"height: 20px;\">Simple cable connection<\/td>\n<td style=\"height: 20px;\">Waterproof junction box<\/td>\n<\/tr>\n<tr style=\"height: 20px;\">\n<td style=\"height: 20px;\">Multiple terminal connections<\/td>\n<td style=\"height: 20px;\">\u0635\u0646\u062f\u0648\u0642 \u062a\u0648\u0635\u064a\u0644 \u0644\u0648\u062d\u0629 \u0627\u0644\u062a\u0648\u0635\u064a\u0644\u0627\u062a<\/td>\n<\/tr>\n<tr style=\"height: 20px;\">\n<td style=\"height: 20px;\">DIN-rail circuit breakers<\/td>\n<td style=\"height: 20px;\">Waterproof distribution box<\/td>\n<\/tr>\n<tr style=\"height: 20px;\">\n<td style=\"height: 20px;\">Frequent maintenance<\/td>\n<td style=\"height: 20px;\">Hinged enclosure<\/td>\n<\/tr>\n<tr style=\"height: 20px;\">\n<td style=\"height: 20px;\">Custom connectors or controls<\/td>\n<td style=\"height: 20px;\">CNC-machined OEM enclosure<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Compact outdoor cable connections can consider an<br> <a href=\"https:\/\/bowo-electric.com\/ar\/ip67-outdoor-waterproof-junction-box-for-electrical-cable-enclosure\/\"><br> IP67 outdoor waterproof junction box<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Projects containing DIN-rail breakers can review the<br> <a href=\"https:\/\/bowo-electric.com\/ar\/ip65-waterproof-electrical-distribution-box-for-din-rail-circuit-breaker-protection\/\"><br> \u0635\u0646\u062f\u0648\u0642 \u062a\u0648\u0632\u064a\u0639 \u0643\u0647\u0631\u0628\u0627\u0626\u064a \u0645\u0642\u0627\u0648\u0645 \u0644\u0644\u0645\u0627\u0621 \u0628\u0645\u0639\u064a\u0627\u0631 IP65<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Information Needed for a Quotation<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Send the following information with your inquiry:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Enclosure size or preferred model<\/li>\n\n\n\n<li>Cable outside diameters<\/li>\n\n\n\n<li>Cable gland specifications<\/li>\n\n\n\n<li>Hole positions and dimensions<\/li>\n\n\n\n<li>\u062a\u062e\u0637\u064a\u0637 \u0627\u0644\u0645\u0643\u0648\u0646\u0627\u062a \u0627\u0644\u062f\u0627\u062e\u0644\u064a\u0629<\/li>\n\n\n\n<li>Required material and color<\/li>\n\n\n\n<li>\u0628\u064a\u0626\u0629 \u0627\u0644\u062a\u062b\u0628\u064a\u062a<\/li>\n\n\n\n<li>Required quantity<\/li>\n\n\n\n<li>Delivery destination<\/li>\n<\/ol>\n\n\n\n<div class=\"article-cta\">\n<h2>Need Custom Cable Entries for Your Enclosure?<\/h2>\n<p>\n    Send BOWO Electric your cable information, gland drawings and enclosure layout.<br>\n    The team can review a suitable standard model and evaluate CNC machining options.\n  <\/p>\n<p>\n    <a class=\"site_btn_primary\" href=\"https:\/\/bowo-electric.com\/ar\/%d8%a7%d8%aa%d8%b5%d9%84-%d8%a8%d9%86%d8%a7\/\"><br>\n      Send Your Cable Entry Drawing<br>\n    <\/a>\n  <\/p>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Frequently Asked Questions<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">What cable size information should I provide?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\n  Provide the outside diameter of the complete cable, together with the required cable<br>\n  gland or connector specification.\n<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Can cable-gland holes be machined before delivery?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\n  Yes. Standard enclosures can be evaluated for CNC-machined gland holes, connector<br>\n  openings and other customized cutouts.\n<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Should outdoor cables enter from the bottom?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\n  Bottom entry is commonly used for outdoor wall-mounted boxes, but the final direction<br>\n  should depend on rainfall, cable routing and installation height.\n<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Should a sample be approved first?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><br>  Yes. Sample approval is recommended when the project includes customized holes,<br><br>  large cables, connectors or repeated OEM production.<br><\/p>","protected":false},"excerpt":{"rendered":"<p>Cable-entry design is an important part of a waterproof electrical enclosure.Incorrect hole sizes, unsuitable cable glands or poor entry positions can reducesealing performance and make installation difficult. Before ordering a customized enclosure, buyers should confirm the cable diameter,gland size, entry direction, internal components and required hole positions.This guide explains the main points to check before [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1658,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,9],"tags":[],"class_list":["post-1656","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-information","category-news"],"_links":{"self":[{"href":"https:\/\/bowo-electric.com\/ar\/wp-json\/wp\/v2\/posts\/1656","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bowo-electric.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bowo-electric.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bowo-electric.com\/ar\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bowo-electric.com\/ar\/wp-json\/wp\/v2\/comments?post=1656"}],"version-history":[{"count":4,"href":"https:\/\/bowo-electric.com\/ar\/wp-json\/wp\/v2\/posts\/1656\/revisions"}],"predecessor-version":[{"id":1661,"href":"https:\/\/bowo-electric.com\/ar\/wp-json\/wp\/v2\/posts\/1656\/revisions\/1661"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bowo-electric.com\/ar\/wp-json\/wp\/v2\/media\/1658"}],"wp:attachment":[{"href":"https:\/\/bowo-electric.com\/ar\/wp-json\/wp\/v2\/media?parent=1656"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bowo-electric.com\/ar\/wp-json\/wp\/v2\/categories?post=1656"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bowo-electric.com\/ar\/wp-json\/wp\/v2\/tags?post=1656"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}